Here's the link to it, the video might explain it better than I can

http://www.newarchery.com/#/product

I see....the bottom holder flexes!!!

It'll also break, mine did the day before the start of the 2006 season (bought itthat spring to try in place of my whisker biscuit). I will however have to give NAP a good review, in that I e-mailed them that night and had a replacement by the middle of the next week. Overall, though, there are better rests out there. Iwent back tothe "evil" whisker biscuit, nothing to wear-out. I think I'll stay with the WB.

The only problem I've come across with mine is making sure the brushes are set evenly. Too much pressure from one side and it will throw your arrow off. Have not had any wear issues or noise issues.